SIST EN 495-5:2013

Flexible sheets for waterproofing - Determination of foldability at low temperature - Part 5: Plastic and rubber sheets for roof waterproofing

This European Standard specifies a method for the determination of the behaviour of plastic and rubber sheets for waterproofing to folding after exposure at a low temperature.

Abdichtungsbahnen - Bestimmung des Verhaltens beim Falzen bei tiefen Temperaturen - Teil 5: Kunststoff- und Elastomerbahnen für Dachabdichtungen

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Verhaltens beim Falzen von Kunststoff und Elastomerbahnen für Dachabdichtungen nach Lagerung in der Kälte fest.

Feuilles souples d'étanchéité - Détermination de la pliabilité à basse température - Partie 5 : Feuilles d'étanchéité de toiture plastiques et élastomères

La présente Norme européenne décrit une méthode pour la détermination du comportement des feuilles d’étanchéité de toiture plastiques et élastomères lors du pliage à basse température.

Hidroizolacijski trakovi - Ugotavljanje upogljivosti pri nizki temperaturi - 5. del: Polimerni in elastomerni trakovi za tesnjenje streh

Ta evropski standard določa metodo za ugotavljanje obnašanja polimernih in elastomernih trakov za tesnjenje ob upogibanju po izpostavitvi nizki temperaturi.

General Information

• Status: Published
• Public Enquiry End Date: 14-Jan-2013
• Publication Date: 01-Aug-2013
• ICS: 91.060.20 - Roofs
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: VLA - Water proofing
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Jun-2013
• Due Date: 16-Aug-2013
• Completion Date: 02-Aug-2013
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/102 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on membranes
• Ref Project: EN 495-5:2013 - Flexible sheets for waterproofing - Determination of foldability at low temperature - Part 5: Plastic and rubber sheets for roof waterproofing

Relations

• Replaces: SIST EN 495-5:2001 - Flexible sheets for waterproofing - Determination of foldability at low temperature - Part 5: Plastic and rubber sheets for roof waterproofing
• Effective Date: 01-Sep-2013

Overview

EN 495-5:2013 - published by CEN - is the European test method for assessing foldability at low temperature of plastic and rubber flexible sheets for roof waterproofing. It defines the specimen preparation, apparatus, exposure and folding procedure, inspection and reporting needed to determine the lowest temperature at which a membrane can be folded without cracking. EN 495-5:2013 supersedes EN 495-5:2000 and adds allowance for instrumented folding apparatus and precision data from a Round Robin test.

Key topics and technical requirements

• Scope: Tests behaviour of plastic and rubber sheets for waterproofing to folding after low-temperature exposure (product characterization before use).
• Specimens:
  • Standard: four specimens 100 × 50 mm (two longitudinal, two transverse) per temperature step.
  • For artificially aged material, reduced specimens (two of 50 × 25 mm) may be used.
  • Sheets with backing: sample from uncoated area; tested only in machine direction.
• Apparatus:
  • Folding apparatus (metal or instrumented) with adjustable parallel plates.
  • Cold chamber capable down to −45 °C with ±2 °C accuracy.
  • Inspection tool: 6× magnifier.
• Procedure:
  • Measure overall thickness (EN 1849-2) and set plate gap to three times thickness.
  • Loop specimens (top surface inside/outside variants), condition 1 h at test temperature.
  • Close folding apparatus within 1 s and hold for a minimum of 1 s in the cold chamber.
  • Allow specimens to warm to (23 ± 5) °C and inspect folded area for cracks under 6× magnification.
  • Repeat in 5 °C temperature steps; cold folding temperature = lowest step where no specimen shows cracking.
• Precision & reporting:
  • Precision confirmed by a Round Robin (seven labs) with agreement at the 5 °C step size.
  • Test report must reference EN 495-5, product identification, sampling (EN 13416), specimen prep, results, deviations and test date.

Applications and users

EN 495-5:2013 is used to demonstrate low-temperature performance of roof waterproofing membranes and to support:

• Product manufacturers (quality control & product data).
• Independent testing laboratories (type/acceptance testing).
• Specifiers, architects and engineers (material selection for cold climates).
• Certification bodies and regulators (conformity assessment).
• Roofing contractors assessing suitability for installation/repair in low temperatures.

Related standards

• EN 13416 - Rules for sampling flexible sheets for waterproofing.
• EN 1849-2 - Determination of thickness and mass per unit area for plastic and rubber sheets.

Keywords: EN 495-5:2013, flexible sheets for waterproofing, foldability at low temperature, plastic and rubber sheets, roof waterproofing, cold folding temperature, folding apparatus, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2013
1DGRPHãþD
SIST EN 495-5:2001
Hidroizolacijski trakovi - Ugotavljanje upogljivosti pri nizki temperaturi - 5. del:
Polimerni in elastomerni trakovi za tesnjenje streh
Flexible sheets for waterproofing - Determination of foldability at low temperature - Part
5: Plastic and rubber sheets for roof waterproofing
Abdichtungsbahnen - Bestimmung des Verhaltens beim Falzen bei tiefen Temperaturen
- Teil 5: Kunststoff- und Elastomerbahnen für Dachabdichtungen
Feuilles souples d'étanchéité - Détermination de la pliabilité à basse température - Partie
5 : Feuilles d'étanchéité de toiture plastiques et élastomères
Ta slovenski standard je istoveten z: EN 495-5:2013
ICS:
91.060.20 Strehe Roofs
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 495-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2013
ICS 91.100.50 Supersedes EN 495-5:2000
English Version
Flexible sheets for waterproofing - Determination of foldability at
low temperature - Part 5: Plastic and rubber sheets for roof
waterproofing
Feuilles souples d'étanchéité - Détermination de la pliabilité Abdichtungsbahnen - Bestimmung des Verhaltens beim
à basse température - Partie 5 : Feuilles d'étanchéité de Falzen bei tiefen Temperaturen - Teil 5: Kunststoff- und
toiture plastiques et élastomères Elastomerbahnen für Dachabdichtungen
This European Standard was approved by CEN on 28 March 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 495-5:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and definitions .5
4 Principle .6
5 Apparatus .6
6 Sampling .6
7 Preparation of test specimens .6
8 Procedure .6
9 Expression of results .8
10 Precision of results.8
11 Test report .9

Foreword
This document (EN 495-5:2013) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for
waterproofing”, the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by November 2013, and conflicting national standards shall be withdrawn
at the latest by November 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 495-5:2000.
This document has been technically and editorially revised in order to:
 add the possibility of instrumented apparatus;
 add precision data of a Round Robin test.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Introduction
This European Standard is inten
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